Pattern-maker&#39;s tool



S. DEUTSCH.

PATTERN MAKERS TOOL.

APPLucATloN FILED MAY1s,192o.

1,412,555, Patented Apr. 11, 1922.

5mm DEuJfEEh UNITEDSTATES PATENT OFFICE.

SIMON DEUTSCH, OF MILWAUKEE, WISCONSIN.

PATTERN-MAKER S TOOL.

i Application filed May 18,

To all tti/wm t may concern.

Be it known that I, SIMON DnUTsoI-r, a citizen of Hungary, and has first citizen papers of the United States, and resident of lIilwaukee, in the county of Mlilwaukee and State of lVisconsin, have invented certain new and useful Improvements in Pattern- Makers Tools; and I do hereby declare that theV following is a full, clear, and exact descri tion thereof. K

h/ y invention has for its object to provide aA simple, economical and useful mark-` ing tool which is especially designed for pattern-makers work or the like.

' TheV primary object of theV invention is to provide a head for adjustable sliding connection with a marking beam,iwhich head is provided at its ends with a plurality of work contact faces or shoes, at least one of them having a straightedgarwhile the others of the series are provided with working faces of greater or less curvature to accommodate the tool for engagement with the edges of work, whetherV the edges are straight orcurved either internall or externally.

With the above objects in view, the invention consists in certain peculiarities of construction and combination of parts as set forth hereinafter with reference to the accompanying drawing and subsequently claimed.

In the drawing:

, Figure l represents a side elevation of a marking beam equipped with a sliding head embodying the features of my invention.

Figure 2 is a corresponding view, showing the reversed side of the head.

Figure 3 is an end View of the head with the marking beam in section as indicated by the line 3- 3 of Figure 1, and

Figure l is a side elevation of the head, showing the offset arrangement of the contact shoes.

Referring by characters to the drawing, l represents a marking beam which in this exemplification of the invention .is shown round in cross section and 2 illustrates a marking pin that projects from one end of the beam. Slidably mounted upon the beam is a head 3 in the form of a sleeve having an aperture therein which conforms to the cross sectional area of the beam and is adapted to permit the head to slide thereon, so as to vary the distance between the work surfaces of said head and the marking pin. The head is held in its adjusted position by a Specification of Letters Patent.

Patented Apr. 11, 1922.

1920. serial No. 382,292.

binding screw 4L which passes through a suit-` able threaded aperture in the body of the head and contacts with the surface of the beam. As best Shown in Figures l and 2, the ends of the head have offset surfaces which are adapted to abuty either the external or internal edges of the body of material upon which the artisan is operating to form a pattern. These offset portions constitute a lseries of shoes, four in number. The shoe indicated by the numeral 5, is provided with an external curved surface of a comparatively great sweep, while the shoe 6 at the opposite-end of t-he head is of a comparatively small sweep, the same being best illus.- trated in Figure 2. The shoe 5 is merged into a shoe 7 as best shown in Figure 2, which shoe has a straight working edge and opposite the shoe 6 the surface of the head is formed into an offset working,surfacefhaving a double curve as indicated by the nu-v meral 8. The double curved surface inclines inwardly, and these curvatures meet in a line approximately radial to the center of the beam. .Thus this working surface or shoe presents a pair of contact faces 8, 8 which are'adapted to have sliding engagement with the curved surface of the work. For example, if it is desired to mark a line concentric with an external curve, indicated by the dotted line X, the shoe 8 is employed, due to the fact that the curvature X is of quite a large sweep and being an externa-l edge of the work when the tool is guided by the shoe 8 and moved to slide along the face of the line.

Obviously the marking pin 2 will describe a line parallel to the curvature X. Should the operator desire to indicate a line upon an internal circle, as indicated by the char-V acter y, due to the fact that this curve y/ is of comparatively large diameter, the shoe 5 is utilized as a guide surface for the tool. I-Ience when the tool is inserted into a circular hub aperture. as indicated at y and said tool is manipulated so as to describe a circle riding upon the shoe 5. the marking pin 2 will describe a corresponding circle outside of and concentric with the circle y. In this operation the center of movement will be between the marking pin and the shoe 5.

It follows that the smaller curved surface shoe 6 can be utilized where the center aperture in the work is of a very small diameter and the operation is the same as in connection with the operation just described where the. shoe 5 is utilized except that the center of movement is on the opposite side of the'V shoe from the marking pin.

Then it is desired to use the tool for straight line work, as indicated by the dotted line e, Figure 2, the straight surface shoe 7 is utilized and the marking tool will then de scribe a line in connection with the pin 2 paralleling the dotted line e. Obviously owing to the adjustable feature of the head upon the beam, varying mierohmic dimensions may be found between the point of the shoe andthe pin 2, the selection of which shoe depends upon the nature of the work required.

lVhile the drawing illustrates a beam circular in cross section, obviously this beam may be made rectangular or polygonal depending upon the requirements of the manufacturer, without departing from the spirit of my invention, and furthermore, the materials utilized for the beam and head may be suitably selected.

Vhile I have shown and described one eX- emplification of my invention minutely as to detail, obviously the structural features may be varied within the scope of the claims.

I claim: 1. A marking-gage comprising a beam provided with a marking element at one end,

a head adjustably mounted on said beam, a shoe formed on said head and having two convex curved surfaces facing said marking element, said surfaces intersecting in a cusp which extends radially from the central line of said beam whereby said convex surfaces are adapted to engage the external edge of a circle of any radius to guide the marking element in a circle concentric therewith.

2. A marking-gage comprising a beam provided with a marking element at one end, a head adjustably mounted on said beam, a shoe formed on the head and having a surface thereon adapted to engage the external edge of a circle to guide the marking element in a circle concentrictherewith, a second shoe at one end of the head and'having a convex surface facing away from the marking end of the gage and adapted to engage the internal edge of a circle, and a third shoe at the other end of the head and having a convex surface facing in the opposite direction and adapted to engage the external edge of a circle for the purpose set forth.

In testimony that claim the foregoing l have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of lVisconsin. i

SIMON DEUTSCH. 

